Road-scraper.



No. 674,703. PatentedM'ay 2|, |90l.Y E. P. LYNCH.

ROAD SCRAPER.

Application med Dec. 18, 1897.) um nodal.) 3 sheets-snee: 1.

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MM/asses Sm/eu' 1 No. 674,703. lPatented May 2|7 190|. E. P. LYNCH.

RoAD scAPl-zn.

{Applcation led Dec. 18, 1897.) (No Model.) Y 3 Sheets-Sheet 2.

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.Patented may 2|, |901.

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E. P. LYNCH.

noAu scRAPE'R.

(Application Bled Dec. 18, 1897.)

' (nu Model.)

UNITED STATES ATENT EErcE.

EDWARD P. LYNCH, OF SALT LAKE CITY, UTAH, ASSIGNOR TO THE AULTMAN COMPANY, OF CANTON, OHIO.

ROAD-SCRAPER.

SPECIFICATION forming' part Of Letters Patent NO. 674,703, dated May' 21, 1901.

Application led December 18, 1897. Serial No. 662,419. (No model.)

To all whom itt may concern,.-

Be it known that I, EDWARD P. LYNCH, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Road-Scrapers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Figure l is a side elevation of a road-scrap' ing machine embodying my invention. Fig. 2 is a plan view. Fig. 3 is a plan view of some of the details enlarged. Fig. 4 is a section on the line x Fig. 3. Fig. 5 is a section on the line y y, Fig. 3.

Inasm uch as the parts embodying the present invention can be applied to any of several forms of mechanism, it will not be necessary here to describe in detail all of the parts of the machine shown.

The operative parts of the machine are supported upon a main frame, the principal elements of which consist of longitudinal bars A A', having a front upwardly-extending part a, an approximately horizontal portion a', and a rear inclined part a2. This main frame is supported upon a running-gear comprising a front axle C, with wheels D, and a rear axle C, with wheels D". The front axle is pivotally connected with the front part of the main frame in any approved manner. Over or near the main axle there is arranged the platform or support B, upon which the operator stands and from which he can reach the various levers and hand-wheels by which the operative parts are controlled.

Upon the supporting and carrying devices above referred to is arranged the scraperblade E. This also may be of the common forms or any preferred sort. It is connected by horizontal pivoting devices to draft-bars E', which, as shown, are curved downward and are secured to the rear side of the scraperblade and extended forward over the top 5o thereof to the partwhich carries them. The

lbe readily adjusted vertically either at one side or the other, or on both sides simultaneously, by means of any suitable lifting mechanism, either such as indicated or any other that is preferred.

From what has been stated it will be seen that the scraper is capable of any of the adjustments ordinarily incident to these devices.

The present invention relates to the mechanism for effecting the rotation of the scraper ringor plate F or its adjustment around its vertical axis. To accomplish this, a series of gear-teeth J are formed along the inner edge of the ring, they being concentric with its axis and of a number su fcient to permit as wide a range of adjustment as is desired. With this series of teeth a wheel K is arranged to engage. It is carried loosely by a shaft k, which is mounted looselyin bearings l, formed in a bracket, (indicated as a whole by L,) which is bolted to the draft-bars I I, said shaft being adapted to slide more or less in its bearings. At lo the shaft is squared, and when it is pushed longitudinally far enough to have `the square part within the pinion K the latter can be rotated, it having a square aperture to engage with this part of the shaft; but normally the pinion is loose upon the shaft. The ring or circle plate F is also provided with a series of apertures f, and with these a locking pin or bolt M can engage. This locking-bolt is carried by a link or bar N, pivoted at n to the bracket or lock-frame L. The link or bar N can be raised when desired by means of a cam O on the shaft 7c, any suitable connecting device between the cam and the link being interposed-as, for

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acts to normally draw the bar O downward; When it is l and also the lock pin or bolt M. desired to lift the lock-bolt, the shaft 7.: is pushed endwise far enough to bringt-he cam O under the trip-arm O' and into the posi-- tion shown in Fig. 5, and then the shaft is turned in such way as to cause the cam to lift the pin out of the aperturefin the scraperring. After that has been accomplished the shaft is pushed longitudinally a short distance farther in order to bring the square part la into the square aperture in the pinion K. Then the latter can be rotated, and the ring and scraper can be thereby adjusted as desired. After the adjustment is effected the shaftis drawn backward again to disengage it from the pinion K and so adjusted that the arm or finger O Ais allowed to escape from the cam O, whereupon the spring P tends to draw the lock-bolt M down into engagement with the scraper-circle.

If the pin should fail to register with one of the apertures f, the'ring can be slightly turned in either direction to bring one of the apertures to the pin by means of the clutchteeth Q, carried by the shaft and adapted to engage with clutch-sockets q on the forward face of the pinion K.

In order to prevent the loosely-mounted pinion from being displaced by the endwise movements of the shaft, I employ a retaining finger ci' plate R, so situated as to bear against the inner face of the wheel, but which permits its rotating freely.

It will be seen that with a mechanism embodying the characteristic features of the parts above described I am enabled to dispense with one of the elements that has been found necessary in machines of this class as heretofore constructed, that element being a special hand-lever or foot-lever with flexible shafting formed in several sections united with sliding and tumbling rod joints for operating the pin or bolt. With the present device I am enabled to not vonly perform the Work of adjusting the scraper, but also of fastening` it after adjustment by a single powertransmitting element, such as the hand-wheel and shaft extending from the operators platform to the pinion and lock.

It will be seen that numerous 1n odi tications can be made without departing from the essential features of the invention, and I therefore do not limit myself exactly to the details which I have shown, they being those which I at present prefer and which I here employ for illustration, but from which there can be departure in many respects.

What I claim is- 1. In a machine of the class described the combination with the adjustable scraper, the means for adjusting it, and the lock, entirely independent of the said adjusting means, for holding the scraper after adjustment, of a power-transmitting device adapted to actuate both the lock and the adjusting means, substantially as set forth.

2. In a machine of 'the class describedthe combination of the scraper adjustable around a vertical axis, the toothed gearing for effecting its adjustment, the lock entirely independent of said gearing'f-or positively holding the scraper after adjustment, the shaft adapted to be actuated from the operators support and arranged to alternately actuate the adjusting-gearing and the lock, substantially as set forth.

3. In a machine of the cla@ described, the combination of the main frame, having an operators support, a draft-frame connected with the main frame and adjustable relative thereto both vertically and horizontally, the scraper, a carrier for the scraper mounted upon the draft-frame and adjustable about an axis, means for edecting the adjustment of the said scraper and its carrier, a lock for positively holding the scraper and its carrier after adjustment, and a power-transmitting device arranged to actuate both the lock and the said adjusting means, and extending from the draft-frame to the main frame adjacent ,to the operators support, whereby it is accessible to the operator upon vthe support whatever may be the adjustment of the draftframe, substantially as set forth.

4. In a machine of the class described, the

combination of the scraper, means for adjusting it comprising a toothed pinion or wheel, a lock for holding the scraper after it has been adjusted, and a shaft upon which the said pinion is loosely mounted, provided with means for engaging with and turning the said pinion or wheel, and also with means for operating the lock, substantially as set forth.

5. In a machine of the class described, the combination of the adjustable scraper, means for adjusting it, an automatically-operating lock for holding the scraper after adj nstment, and a power-transmitting device for actuating the means for adjusting the scraper, and provided with means for releasing the scraper from the lock, substantially as set forth.

6. In a road-scraping machine, the combination of the main frame provided with an operators support, a draft-frame connected thereto and adjustable both vertically and horizontally, a scraper, a scraper-carrier supported upon the draft-frame and adjustable about an axis to effect the Vangular adjustment of the scraper, a lock 'for holding the scraper in position afterit has been angularly adj usted, gearing for moving the scraper-carrier to effect its angular adj ustmeut, and shafting, supported on the main frame and adjacent to the operators support, and also upon the draft-frame, the said shafting being arranged to operate both the lock and the angular'adjusting means for the scraper, substantially as set forth.

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7. In a road-scraping machine, the combination of a scraper, a support or carrier therefor, capable of angular adjustment, gearing for effecting such angular adjustment, a lock for holding the scraper in position after adjustment, and a single power-transmitting device provided with means for operating the lock and the gearingfor adjusting the scraper, the said means beingmovable relative to these parts, whereby it maybe engaged with either one or the other of them, or "disengage from both of them at the will of the operator, substantially as set forth.

8. In a road-scraping machine the combination with the scraper, the means for adj usting it and the lock foi` holding it after adj ustment, of ashaft adapted to slide relativelyT to both the lock and the adjusting mechanism and to actuate them both, substantially as set forth.

9. In a machine of the class described, the combination with the scraper, means for adj usting the scraper, and a lock independent of the adjusting device and adapted to hold the scraper in its adj usted position,of a powertransmitting device adapted both to release the lock and actuate the adjusting device, substantially as described.

10. In a road-scraper, the combination of a frame, anA operators platform thereon, a scraper adjustably supported on said frame, a lockpin movable toward and from the scraper-support, and adapted to lock the same rigidly to the frame, means for moving said pin out of engagement with the scraper, a shaft for actuating said means extending to the operators platform, and means adapted to be detachably engaged by said shaft for adjusting the scraper, substantially as set forth.

11. In a road-scraper, the combination of a frame, an operators platform thereon, the scraper adjustably supported on said frame, a rack connected with the scraper, a springactuated lock for holding the scraper stationary, a shaft, means mounted on the shaft for moving the lock out of engagement with the scraper, a pinion meshing with the aforesaid rack, and adapted to be engaged with said shaft, and means accessible from the operators platform for actuating the shaft, substantially as set forth.

12. In a road-scraping machine the combination of the adjustable scraper, the lock, the adjusting mechanism, two alternately-acting actuating devices for the adjusting mechanism and a shaft for operating both of the actuating devices, substantially as set forth.

13. In a road-scraping machine the combination of the adjustable scraper, the lock, the adjusting gear-wheel, the shaft, and two alternately-acting clutch-like devices for connecting the shaft to the gear-wheel, substantially as set forth.

14. In a road-scraping machine the combination of the adjustable scraper, the lock, the adjusting mechanism, a shaft, the two clutchlike devices between the shaft and the adjusting mechanism and means for connecting the shaft with the lock, substantially as set forth.

15. In a road-scraping machine the combination of the adjustable scraper, the main frame, the operators support, a lock-pin, or equivalent for holding the scraper, means for adjusting the scraper when the lock is open, a shaft adapted to actuate either the lock or the adjusting mechanism, and means accessible to the operator when on the platform for sliding said shaft relatively to the lock and said adjusting mechanism, substantially as set forth.

16. In a road-scraping machine the combination of the adjustable scraper, the scrapercarrier,the adj ustingwheel,t`ne sliding shaft, means to prevent displacement of the Wheel, the lock, the cam actuated by the shaft for opening the lock, and a clutch-like device for connecting the shaft with the wheel, substantially as set forth.

17. In a road-scraping machine, the combination of an adjustable scraper, a lock for holding the scraper stationary, gearing for varying the position of the scraper, a powershaft, means controlled by said shaft for releasing said lock, means for connecting said shaft with one member of the scraper-adjusting gearing when the lock-releasing devices are in an inoperative position, and independent means for connecting said shaft and gearing when the lock-releasing devices are in operative position, substantially as set forth.

18. In a road-scraping machine, the combination of the supporting-frame,a scraper and its carrier supported thereby, arranged to be angularly adjusted, a rack and pinion for effecting the angular adjustment of the scraper and its support, locking means for holding the scraper and its support in the positions to which they are adjusted, a longitudinally-movable shaft upon which is supported the pinion constituting part of the means for angularly adjusting the scraper, and means also supported by the said shaft and movable therewith, arranged to be brought into engagement with and to operate the said locking means, substantially as set forth.

In testimony whereof I affix my signature in presence of two Witnesses.

EDWARD P. LYNCH.

Witnesses:

THos. G. PEAGHEY, C. H. McOLoRY.

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